What is "Thousand Island dressing"?

Thousand Island dressing is a creamy and tangy salad dressing made from a base of mayonnaise or mayonnaise-like sauce, mixed with ketchup or tomato paste, sweet pickle relish, vinegar, and finely chopped onions and peppers. It has a smooth and slightly chunky texture, with a sweet and savory flavor profile balanced by the tanginess of the vinegar and the crunch of the vegetables. Thousand Island dressing is commonly used as a topping for salads, sandwiches, burgers, and seafood dishes, adding a burst of flavor and a creamy texture to the dish.